Improved machine for making sheet-lead



"Unirse STATES PATENT @erica JAMES MILLINGAR, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO IIIMSELF, THOS. VOODS, AND BENJ. F. PINE, OF SAME PLACE.

HVIPROVED MACHINE FOR MAKING SHEET-LEAD.

Spccilieatiou forming part of' Letters Patent N0. 105,!12, dated` July 5, 1870.

win/lli t may concern:

Beit known that I, lIAMns MILLiNGr-in, of Philadelphia, Pennsylvania, have invented a Machine for Making Sheet-Lead, and I do hereby declare the following to be a full, clear, and exact description of the same.

-My invention relates to that class of machines in which lead is formed into thin sheets by passing it in a molten state onto a revolving wheel maintained in a cool state by the action of water; and my invention consists in so arranging the water-supply pipe and so constructing the wheel that the water is poured upon the inner surface of the rim of the wheel and the outer surface is maintained dry.

My invention further consists of devices whereby the metal is deprived of its dross and introduced uniformly onto the surface of the l wheel.

In order to enable others skilled in the art to make and use my invention, I will now proceed to describe its construction and operation, reference being had to the accompanying drawings, which form a part of this specification, and in which- Figure l is a vertical sectional view of my machine for making sheet-lead; Fig. 2, a transverse section of the same on the line l 2, Fig. l; Fig. 3, a plan view, and Figs. 4 and 5, detached views drawn to an enlarged scale, and illustrating portions of the invention.

Similar letters refer to si milar parts throughout the several views. v

The box-like frame A of the machine is braced by uprights and cross-pieces a and a, and is formed at the bottom into a water-receptacle, b, which should be provided at its lowest point with a suitable outlet-pipe; and in bearings in the 'opposite side-pieces of this frame A is arranged to turn a shaft, B, having at one end a driving-pulley, c. A wheel, F, of large diameter, is hung to the shaft B within the frame of the machine, and at each edge of this wheel, on the periphery of the same, is a raised ange, d, on which is formed a groove, e. An inclined spout, II, passes through the frame A at a point above the wheel F, and is widened at its outer end, so as to form a dat spout open at the top, the end of the spout being almost in contact with the periphery of the said wheel, and being as wide as the wheel is broad between the anges d d.

Extending transversely across the spout H, and arranged to be adjusted vertically within the same to any required position, is a sluiceplate, f, the under edge of which is curved, as seen in Fig. 4, and at a point beyond this plate, and also extending entirely across the spout, is a rounded projection, t', the object of which will be hereinafter described. (See Fig. 5.) A water-supply pipe, G, which should be supplied with a suitable regulating-cock, is attached to the frame of the machine, and is bent in such a manner that its end or nozzle shall project toward the inside of the wheel F, so that a stream of cold \\'ater"1nay be projected onto the inside of the rim. A stationary inclined plate, 7s, is arranged at 011e side of and slightly above the center of the wheel F, and at points adjacent to this plate are two rollers, Zl, arranged to turn in brackets secured to the uprights a a of the frame of the machine and operated from the driving-shaft B. `The upper roller, Z, is furnished with a cutting-blade, s, which at every revolution of the said roller is arranged to strike the plate k, the blade yielding sufficiently to pass this plate by reason of the yielding bearings to which the roller is hung. Motion is communicated to the wheel F and to the rollers Z and Z, which turn in the direction of their respective arrows, and a continuous stream of cold water from the pipe G is proj eeted onto the inside of the wheel F, fowing over the edges ofthe latter into the receptacle b, from which it is immediately drawn off, so that it may not accumulate sufficiently to touch the outer periphery of the said wheel, and the grooved flanges d and d prevent the water from gaining access to the said outer periphery. A stream of molten lead is caused to fiow through the spout, and is projected from the same onto the periphery of the wheel F, this stream in its passage along the spout first striking and passing beneath the sluice-plate f, which, by reason of its curved under surface, aids in spreading the metalentirely across the spout, and at the same time skims the dross from the surface. rPhe lead, before being permitted to pass onto the wheel, is next caused to ow over the projection z' at the mouth ofthe spout, which spreads it evenly across the latter, so that it shall be received on the cooled surface of the wheel, which,1 as it revolves, carries the lead round in the form of a thin sheet7 hardened by Contact with the surface of thc Wheel. The continuous sheet thus formed is received upon the plate k and cut into short pieces of a uniform length by the blade s of the roller Z, these pieces as they are cut being carried ofi' from the machine by the roller Z and received into any suitable receptacle.

The sheet-lead thus made is especially useful for conversion into white lead, and in order to roughen the surface of the said sheets,` so that they maybe acted upon by the acidswith greater facility, the periphery of the Wheel may, if desired, be slightly serrated or roughened.

I claim as my invention and desire to secure by Letters Patentl. The combination ofthe wheel F, hot-metal reservoir, spout II, rib 2'., and curved platef, arranged as set forth.

2; The combination of the flanged Wheel F4 and Watenspout G(co1nprising the cooling de vice) with the hot-metal reservoir and spout H, all arranged and operating together as described.

In testimony whereof I have signed my name -tolthis specification in the presence of two sub- 

